Providing feedback on programming assignments manually is a tedious, error prone, and
time-consuming task. In this paper, we motivate and address the problem of generating …

Many web applications use databases for persistent data storage, and using Object
Relational Mapping (ORM) frameworks is a common way to develop such database-backed …

Software systems introduce an increasing number of configuration options to provide
flexibility, and support updating the options on the fly to provide persistent services. This …

Writing efficient software is difficult. Design and implementation defects can cause severe
performance degradation. Unfortunately, existing performance diagnosis techniques like …

Analyzing performance and understanding the potential best-case, worst-case and
distribution of program execution times are very important software engineering tasks. There …

Most modern JavaScript engines use just-in-time (JIT) compilation to translate parts of
JavaScript code into efficient machine code at runtime. Despite the overall success of JIT …

Modern object-oriented software commonly suffers from runtime bloat that significantly
affects its performance and scalability. Studies have shown that one important pattern of …

Regression performance testing is an important but time/resource-consuming phase during
software development. Developers need to detect performance regressions as early as …

Continuous integration (CI) emphasizes quick feedback to developers. This is at odds with
current practice of performance testing, which predominantely focuses on long-running tests …

Performance debugging is notoriously elusive—real-world performance problems are rarely
clear-cut failures, but manifest through the accumulation of fine-grained symptoms …